JPS59124542A - Chip conveyor - Google Patents

Abstract

PURPOSE:To efficiently and securely convey chips, by providing chip attraction magnets on a conveying belt and equipping a chip releasing section with a means for reversing the magnetic poles of the magnet. CONSTITUTION:Chips discharged together with a coolant from a machine tool into a horizontal conveying passage 2 are carried to an inclined conveying passage 3 by the revolution of a conveying belt 4. At that time, the north poles of permanent magnets 10 mounted at prescribed intervals on the conveying belt 4 are opposed to hinge plates 6 so that the powdery chips C2 are attracted on the tops of the hinge plates, the linear and larger chips C1 are held on the fronts of scraping plates 7 and all the chips are conveyed upward. When the permanent magnet 10 is moved to the upper horizontal part of the conveyor, a driving cam 12 is engaged with an engaging protrusion 13a on a reinforcing beam 14a to rotate the cam to separate the north pole of the magnet from the hinge plate 6 to release the powdery chip C2 from the attraction. As a result, all the chips drop into a collecting box 17.

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a chip conveying device for conveying chips, such as cutting waste or press punching waste, discharged from various machine tools, horizontally or obliquely by means of a conveyor belt. It concerns conveyors.

Prior Art Usually, chips discharged from a machine tool are dropped along with coolant onto the conveyor belt of this type of conveyor, and relatively large chips in the form of linear or lumps are not washed away by the coolant. They are sequentially conveyed as the conveyor belt rotates. However, fine powdery chimps such as those from castings flow out from the gap between the conveyor frame and the conveyor belt together with the coolant, and remain on the bottom of the conveyor frame or accumulate in the coolant tank. . Therefore, in conventional conveyors of this type, not only the efficiency of conveying powdered chips decreases, but also the remaining chips impede the rotation of the conveyor belt, and it takes time to clean the inside of the coolant tank. there were.

Purpose This invention was made to solve the above-mentioned conventional problems, and its purpose is to reduce the amount of lost chips, avoid mechanical troubles, and facilitate maintenance of the coolant tank. An object of the present invention is to provide a novel chip conveyor that can efficiently convey powdered chips.

EXAMPLE An example embodying the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a machine frame 1 of this chip conveyor is integrally constructed of a horizontal conveyance path 2 extending in the horizontal direction and an inclined conveyance path 3 rising diagonally upward. An endless conveyor belt 4 is installed in the both pot conveyance paths 2°3 so as to be able to go around, and by driving a gear motor 5 installed on the upper end surface of the inclined conveyance path 3, the upper surface of the conveyor belt 4 is kept horizontal. It is moved from the conveyance path 2 side to the inclined conveyance path 3 side.

The conveyor belt 4 is composed of a large number of steel hinge plates 6 that are rotatably connected to each other, and each hinge plate 6 of a predetermined number has a scraper plate extending along the width direction of the conveyor belt 4 on two sides. 7 is welded and fixed in an upright position. As shown in FIG. 2, during the rotation of the conveyor belt 4, relatively large chips C1 in the form of lines and blocks are conveyed upward in the inclined conveyance path 3 by the front surface of each scraper plate 7. It has become.

The plurality of hinge plates 6 arranged at predetermined positions are molded from stainless steel, and as shown in FIGS. 3 and 4, a protective box 8 extending along the width direction of the conveyor belt 4 is fixed to the back surface thereof. ing. This protective box 8
A support shaft 9 is rotatably supported between the left and right side plates 8a, and a rod-shaped permanent magnet 10 extending over almost the entire length is fixed to the support shaft 9. This permanent magnet 10 has a spindle 9
It is provided eccentrically with respect to the support shaft 9 so that one pole (in this example, the N pole) is longer from the axis of the pole than the other pole (S pole), and the support shaft 900 is not driven. The north pole faces the hinge plate 6 in a very close manner, and the south pole faces the hinge plate 6 at a predetermined distance. When the N pole faces the hinge plate 6 during chip conveyance, as shown in FIG.
2 is attracted to the upper surface of the conveyor belt 4.

In addition, a magnetic field line focusing member 11 made of a magnetic material and having a U-shaped cross section is fitted and fixed to the S pole of the permanent magnet 10, and as shown by broken lines in FIGS. 5 and 6, the magnetic field lines M emerging from the N pole are fixed. The magnetic lines of force are focused by the magnetic force line focusing member 11, and the magnetic force on the south pole side is weakened. Therefore, as shown in FIG. 6, when the S pole faces the hinge plate 6 during chip ejection, the chips c2 on the hinge plate 6 are not magnetized and fall due to their own weight as the conveyor belt 4 reverses. (See Figure 2).

On the other hand, as shown in FIGS. 3 and 4, drive cams 12 having three protrusions 12a on the periphery are fixed to both ends of the support shaft 9, and as the conveyor belt 4 rotates, the conveyor frame 1 side 12o by the plurality of engaging protrusions 13 provided in
It is designed to be rotated by 0. As shown in FIGS. 2 and 3, each engaging protrusion 13 is used to reinforce the upper and central portions of the plurality of reinforcing beams 14 fixed at predetermined intervals on the conveyor frame 1. Beams 14a, 14
Upper reinforcing beams 14a protrude from both ends of b.
has first and second parts projecting upwardly and downwardly, respectively.
Further, a third engaging protrusion 13C3 that protrudes downward is provided on the central reinforcing beam 14b.

As shown in FIG. 4, a substantially triangular position holding cam 15 is fixed on the support shaft 9 in one end of the protective box 8, and each cam surface 15a is attached to a plate 16 provided on the bottom plate of the protective box 8. By joining with the upper surface of the permanent magnet 10, the permanent magnet 10 is held at each rotating position.

The support shaft 9, the driving cam 12, the engaging protrusion 13, etc. constitute a switching means for switching the NS pole of the permanent magnet 10 in this embodiment, and as described in the following explanation of the operation, the conveyor belt With the 40 rotations, the permanent magnet 10 is rotated at an appropriate position, and when the chip C is attracted and transported, the N pole is moved closer to the hinge lever L/-,)6[/n, and when the chip C is ejected, the N pole is moved closer to the hinge. The hinge plates 6 are spaced apart by a certain distance.

Next, the operation of the chip conveyor in this embodiment configured as described above will be explained.

As shown in FIG.
With the zero rotation movement, it is transferred to the inclined conveyance path 3 side. At this time, since the N pole of each permanent magnet 10 faces the hinge plate 6, the powdered chips C2 are transferred to each hinge plate 6.
The powder chips can be adsorbed and held on the upper surface of the chip, and unlike the conventional method, the powder chips are prevented from flowing out due to the coolant. and,
The powdered chips C2 are transported inside the inclined conveyance path 3 by the permanent magnet 1 [with the IK adsorbed state, and the linear and lumpy chips C2 are
1 are sequentially conveyed northward while being pressed by the front surface of each scraper plate 7.

When the permanent magnet 10 reaches the upper horizontal part of the conveyor,
When the protrusion 12a of the drive cam 12 engages with the first engagement protrusion 13a provided on the upper reinforcing beam 14aK, the drive cam 12 is rotated by 120° as shown by the arrow in FIG.
The poles are spaced apart from the hinge plate 6. Follow, 6th
As shown in the figure, since the magnetic lines of force M of the permanent magnet 10 no longer act on the hinge plate 6, the adsorption state of the powdery chips C2 is released. Therefore, when the conveyor belt 4 is reversed in this state, powdery chips C2 and linear and lumpy chips C1
are the hinge plate 6 and the scraper plate 7 due to their own weight.
It separates from the body and falls into the collection box 17.

In this case, in this embodiment, each permanent magnet 10 is provided eccentrically with respect to the support shaft 9, and the magnetic force line focusing member 11 is attached to its S pole, so that when the N pole is separated from the hinge plate 6, The demagnetization effect can be improved, and there is no fear that the powdered chips C2 will remain on the soil of the hinge plate 6 when the chips are released.

When the permanent magnet 10 that has released the chips begins to descend within the inclined conveyance path 3 as the conveyor belt 4 rotates,
1 by the second engaging protrusion 13b of the upper reinforcing beam 14a.
After being rotated by 20 degrees, when passing the lower end of the inclined conveyance path 3, the third engaging protrusion 1 of the central reinforcing beam 14b
30 by 120 degrees, and the N pole is returned to the state where it can be attracted to the hinge plate 6 opposite to it. Then, in this state, it moves to the lower position of the horizontal conveyance path 2 and moves toward the base point while adsorbing and collecting the lost chips remaining on the bottom surface of the conveyor frame 1, thereby completing one cycle of chip conveyance and discharge work.

It should be noted that the present invention is not limited to the configuration of the above-mentioned embodiment, and can be embodied in each of the modified examples described in the next section.

(1) As shown in FIG. 7, a magnetic roller 19 is rotatably provided below the upper end of the inclined conveyance path 3, and a scriber 20 is installed so that its tip contacts the outer peripheral surface of the magnetic roller 19. , and forcibly adsorb and remove chips remaining on the hinge plate 6 and scraper plate 1 after the chips are released.

(2) The permanent magnet 10 may be constructed by connecting a plurality of small piece-shaped magnets in series instead of the bar-shaped magnet in the above embodiment.

(3) The permanent magnet 10 is configured to reversely rotate at an angle of 180°.

(4) The magnetic force line converging member 11 of the above embodiment is omitted, and the eccentricity of the permanent magnet 10 is increased so that one pole is sufficiently separated from the hinge plate 6 during chip ejection.

(5) The Nfp pole of the permanent magnet 10 is configured in the opposite manner to that of the embodiment described above, and the magnetic force line focusing member 11 is attached to the N-pole side.

(6) Drive cam 12 and engaging protrusion 13 constituting conversion means
and are respectively provided only on one side of the conveyor belt 40.

(7) The position holding cam 15 and leaf spring 16 of the above embodiment are provided on both sides of the conveyor belt 4, respectively.

(8) Permanent magnets 10 are provided at the positions of the scrapers 7 on the upper surface of the conveyor belt 4.

Effects As detailed above, the present invention provides a magnet for attracting chips along the width direction of the first general conveyance belt, and a switching means for switching the NS pole of this magnet at the chip discharge position of the conveyor belt. The structure is such that one pole of the magnet approaches the conveyor belt when the chips are attracted and conveyed, and one pole moves away from the conveyor belt when the chips are ejected. It is industrially superior as a chip conveyor because it reduces the amount of chips, avoids mechanical toppling, and facilitates maintenance of the coolant tank. It also has the effect of efficiently conveying powdered chips. This is a great invention.

[Brief explanation of the drawing]

1 to 6 show one embodiment of the present invention, in which FIG. 1 is a perspective view showing the entire chip conveyor, FIG. 2 is a side view showing its conveying action, and FIG. 3 is a side view showing the conveyor. is the second @
FIG. 4 is a partially cutaway perspective view showing an enlarged main part, and FIGS. 5 and 6 are cross-sectional views of the permanent magnet in different operating states. FIG. 7 is a side view of the main parts showing an example of a historical change in the invention. Conveyor belt 4, spindle 9, permanent magnet 10.1 drive cam 12
, position holding cam 15, plate spring 16, tip 01.02°Procedure procedure city official document (spontaneous) May 10, 1980 Director of the Patent Office Kazuo Wakasugi 1, Indication of case 1988 Patent Application No. 230030 2 , Name of the invention Chip conveyor 3, Person making the amendment Relationship to the case: Patent applicant address Name: Enomoto Kogyo Co., Ltd. (Name) 4. Agent address: No. 2 Equipment, Hatazume-cho, Gifu City, 500 Japan <0-5
82>65-1810 (Representative) 6, Specification to be amended, Claims and Detailed Description of the Invention column 7,
Contents of amendment (1) The statement in the scope of claims column of the specification will be amended as a separate sheet. (2) The description of "converting means for converting the N8 pole" on page 8, lines 10 to 11 of the specification is amended to read "driving means." (3) The description of "converting means" on page 12, line 6 is amended to read "driving means." (4) From page 12, line 17 to page 18, line 1, the statement ``By configuring the N8 pole of this magnet...'' has been changed to ``This magnet can be removed from the chip attraction surface of the conveyor belt.'' ``Due to the fact that a driving means was installed to separate them,'' the correction was made. ``2. Claim 1 In a chip conveyor that conveys chips (C) such as cutting waste or press punching waste in a horizontal or inclined direction by going around a conveyor belt (4), Chip adsorption magnets (10
), and drive means (9, 12, 1) for separating the magnet (10) from the chip attraction surface of the transport belt (4) at the chip ejection position of the transport heald (4).
A chip conveyor characterized by being equipped with a 3°1s, 16). 2. The chip conveyor according to claim 1, wherein the conveyor belt (4) has a plurality of scrapers (7) standing upright on its upper surface and extending along its width direction. 8 Claims @ The magnet (10) is housed in a protective box (8) provided on the back side of the conveyor belt (4)
The chip conveyor according to item 1. 4. The chip conveyor according to claim 1 or 8, wherein the magnet is a permanent magnet (10), and one of the poles is surrounded by a magnetic force line focusing member (11) made of a magnetic material. 5 The driving means is a spindle (9) provided on the magnet (10).
), and the conveyor belt (4) is attached to this support shaft (9).
The chip conveyor according to claim 8 or 4, which engages a part of the conveyor frame (1) and rotates the support shaft (9) at a predetermined angle as the conveyor rotates. 6. Claim 1, wherein the driving means includes a position holding member (15, 16) for holding one of the poles of the magnet (10) in a close position and a separated position with respect to the conveyor belt (4). Or the chip conveyor according to item 5. 7. The position holding member includes a position holding cam (15) provided on the spindle (9), and a leaf spring secured to the protective box (8) so as to engage with this position holding cam (15). (16) A chip conveyor according to claim 6, comprising: (16). 8. The chip conveyor according to claim 5, wherein the magnet (10) is provided eccentrically with respect to the support shaft (9). ” 261

Claims (1)

[Scope of Claims] 1. In a chip conveyor that conveys chips (0) such as cutting waste or press punching scraps horizontally or in an inclined direction by going around a conveyor bell l-(4), the conveyor heald (4) A magnet (10) for attracting chips along the width direction.
At the same time, a switching means (9° 12.13, 15, 16) for switching the NS pole of this magnet (10) at the chip ejection position of the conveyor belt (4) is installed, and the chip Co) is adsorbed and transported. Sometimes one pole of the magnet'(10) is the conveyor bell 1-(4)l'? : A conveyor for conveying chips, characterized in that one pole of the conveyor belt approaches the conveyor belt (, 4) and separates from the conveyor belt (, 4) when the chips CCj) are discharged. 2. The chip conveying device according to claim 1, wherein the first general conveying heald (4) has a plurality of scraping plates (7) that stand upright on its upper surface and extend along its width direction. conveyor. 3. The chip conveyor according to claim 1, wherein the magnet (10) is housed in a protective box (8) provided on the back side of the conveyor belt (4). 4. The chip conveyor according to claim 1, wherein the magnet is a permanent magnet (10), and one of the poles is surrounded by a magnetic force line focusing member (11) made of a magnetic material. . 5 The conversion means is a support shaft (9) provided on the magnet (10).
), and the conveyor belt (4) is attached to this support shaft (9).
A drive cam (1) engages with a part of the conveyor frame (i) and rotates the support shaft (9) by a predetermined angle as the conveyor frame (i) rotates.
2) Claim 3, paragraph 4, consisting of
Conveyor for conveying chips as described in Section 2. 6. Claims: The converting means includes a position holding member (15, 16) for holding one of the poles of the magnet (10) in a close position and a separated position with respect to the conveyor bell 1-(4) VrC. The chip conveyor according to item 1 or 5. 7 The position holding member includes a position holding cam (15) provided with the support shaft (9) Vrc, and this position holding cam (15).
A chip conveyor according to claim 6, comprising a leaf spring ζ 16) fully engaged with the protective box (8) so as to engage with the protective box (8). 8. The chip conveyor according to claim 5, wherein the magnet (1o) is provided eccentrically with respect to the support shaft (9).